Just general as I am looking at getting one. Haven't really heard much about Oppo's apart from the fact that they Chinese.

In this case... I have looked at quite a few Oppo devices over the years. Currently I have the Oppo Flip, and my daughter uses one herself.

They are good build quality, an excellent camera and Android is pretty much stock with only a skin over it. 

Another Oppo user here - Oppo A74 5G aka "CPH2197", which is a mid-range phone.

Very good; stable; now on ColorOS 13; but I believe it shipped with 11, so that's two major OS upgrades, which speaks well.

As freitasm stated, it's basically a skinned stock Android 13 OS - I've only noticed one slight glitch, which is the slightly aggressive memory management sometimes kills off my running 3rd Party launcher, so that stops the "Home" button from working, so you need to hit "task manager" before pressing "home" - resolved by "locking" the launcher in the App Manager.

Call quality great, 5G, VOLTE and VOWiFi, etc, etc.

Noel leeming had the Reno10 on special with $100 of the RRP so i got one.

What is the best way to transfer all my stuff of my old Huawei Mate 10 to the Oppo?

Cheers Paul.

My A54 is the best phone I've had. I have never been able to justify expensive phones, had a variety of 'just ok' phones in the past that have never lasted as long as I'd want.  High chance my next one will be an Oppo. 

https://www.gsmarena.com/oppo_find_x6_pro-12105.php - This particular Oppo looked pretty damn cool, pity you can't get it here.

https://youtu.be/b7zBJNmdImo MKBHD Vid review